Undrained Creep Characteristics of Silty Sands and Comparative Study of Creep model
2012
Bong, T.H., Seoul National University, Seoul, Republic of Korea | Son, Y.H., Seoul National University, Seoul, Republic of Korea | Noh, S.K., Seoul National University, Seoul, Republic of Korea | Park, J.S., Seoul National University, Seoul, Republic of Korea
Soils exhibit creep behavior in which deformation and movement proceed under a state of constant stress or load. In this study, A series of triaxial tests were performed under constant principal stress in order to interpret the undrained creep characteristics of silty sands. Although samples are non-plastic silty sands, the results of tests show that the creep deformation increasing over time. Based on the results of test, Singh-Mitchell model parameters and Generalized model coefficients were calculated. Generalized model showed slightly larger deformation in the primary creep range but secondary creep deformation was almost identical. Although Singh-Mitchell model showed relatively large errors compared to Generalized model because it uses the average of test results, but Singh-Mitchell model can be easily represented by three creep parameters.
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